Tire Inner Tube

FIG. 1 is a perspective view of a tire inner tube showing my new design; FIG. 2 is a left elevational view thereof; FIG. 3 is a right elevational view thereof; FIG. 4 is a front elevational view thereof; FIG. 5 is a rear elevational view thereof; FIG. 6 is a top plan view thereof; FIG. 7 is a bottom plan view thereof; and, FIG. 8 is a cross-sectional view thereof taken along line 8 - 8 of FIG. 3 , shown in an environment of use. The portions of the drawing in broken lines show an environment of use and form no part of the claimed design.